Recently, we saw iFixit’s Transparent Rear PanelÂ replacementÂ give your iPhone 4S a bare-it-all look. While the hack was simple enough to do, I’d imagine not too many casual owners would want to stare at the honking battery all day. But what if a somewhat similar DIY kit uses the same glass back of your iPhone 4/4S AND gives the Apple logo a nice healthy glow? Sold by K.O Gadgets, this hack takes 5 minutes to complete and involves removing several screws,Â replacing the back cover, and adding in the “light panel”. The kit sells for $42 and comes in both black and white, though only for a very limited time (57 hours left as of writing). There’s even an option to choose the standard Apple logo or the Steve Jobs Tribute logo designed by Jonathan Mak.Â Check out the demo video below and see how this nifty mod is installed.

Apparently, it doesn’t take very much to hack into display monitors you see all around you (well, at least for this guy anyway). Using an iPhone and a custom built transmitter, he was able to feed a video taken from the device right onto the screens in Times Square.

the way it works is pretty simple: plug in my transmitter into the iphone 4 and play back any video clip. you can play it through the ipod feature or through the camera roll. the transmitter instantly sends the video signal to the video repeater and the video repeater overrides any video screen that it’s being held next to. it doesn’t matter what shape or size the hacked screen is because the hack video will simply keep its correct dimensions and the rest of the hacked space will stay black.

Pretty neat stuff for sure…and probably a handy gizmo for proposing to your girlfriend in the bright lights of NYC as well. Full video after the gap.

Think your 4 digit iPhone passcode will keep your contact info safe from prying eyes? Think again. A major security hole has just been discovered in iOS 4, a breach that could allow others to “hack” into your contacts screen and make calls to anyone they wish. All this without having to even guess your password. Here’s how the exploit works:

Slide to unlock your screen

Tap on “Emergency Call” on bottom left of keypad

Enter a fake number, such as ### or 8888. Just make sure it’s not your country’s emergency number!

Tap on the green call button and immediately press on lock button on top right of your iPhone.

You should now be taken into your contact screen, where you can browse or call anyone on your list.

It may take you a few tries before the contacts page is accessed, but time it just right and your passcode will be bypassed. Needless to say, this threat is a pretty serious flaw in the OS and you can bet that Apple will patch it up with an update (4.2?) in the near future. Check out the video of a Brazilian iPhone user demonstrating this exploit after the gap.

Yesterday, 30 July evidently was D-Day for what could be the biggest security risk yet seen n Apple’s iPhone. The vulnerability was discovered by Charlie Miller and Collin Mulliner (æã‚ã—ã„), who advise that any user who finds an SMS message which contains a sole square character should immediately turn their phone off. Apple have yet to patch this vulnerability which could allow, “someone [to] pretty quickly take over every iPhone in the world”.